ATI Radeon HD 4350 's Advantages
Lower TDP (20W vs 195W)
NVIDIA GeForce GTX 680 Mac Edition 's Advantages
Released 4 years and 7 months late
Boost Clock1058MHz
More VRAM (2GB vs 512GB)
Larger VRAM bandwidth (192.3GB/s vs 6.400GB/s)
1456 additional rendering cores